Many people may think that animals in the zoo are happy, free and (luck), but most of them are sad. Do you (know) why? Animals tigers, lions, and bears usually (live) in forests or mountains. They run, jump, play with their (child) and catch small animals for food. But now they have to (stay) in cages, small rooms in the zoo. They don't have to find food by (they) because the zoo keepers feed them. They do nothing but eat, walk sleep every day. Their life in the zoo (be) quite different from that in the forest because they are not free. Maybe they miss their mothers and their friends. fact, they feel lonely.